Backpack with portable stereo system

ABSTRACT

A backpack combines with portable stereo system. The present invention includes a bag portion and a pair of shoulder straps attached to the front surface of the bag portion. Two mini boom boxes connected to each other through an audio frequency wire are respectively attached to the shoulder straps. An audio frequency receiver connected with the two mini boom boxes is set on top of the bag portion. With the idea the present invention employs, it can increase the added value by lowering the costs and therefore enhance the market competitiveness.

BACKGROUND

1. Field of the Invention

The invention relates to a backpack combining with the portable stereo system.

2. Background of the Invention

Backpack is the most common gear that people carry for packing personal things, foods and beverage when they go traveling, especially double-strap backpacks. Because two sides of shoulder straps can balance the pressure loaded on both shoulders instead of making people feel uncomfortable.

Moreover, when people travel around, they would like to listen to some music to release the stress that they face from busy workload. The most common music playing device that people carry are CD players and MP3 players which are small in size and easy to carry.

However, these devices have the following disadvantages: First, people need headphone or earphone along with the music playing device to hear the music which means that they can not enjoy the sound of nature and chat with friends at the same time. Second, people would easily feel uncomfortable using the earphones which would also affect the sound effect. Third, this way of playing music is inconvenient because the audio frequency wire of the earphone connected with the CD and MP3 players might easily get entangled and hurt the ears if being dragged by external force.

Therefore, the present invention fixes problems of the conventional invention to create a portable traveling music-playing device that people can travel and listen to high-quality music at the same time without wearing any earphone. With the ideas of the present invention, it can increase the added value of the backpack and the market competitiveness.

SUMMARY OF THE PRESENT INVENTION

The present invention includes a backpack with portable stereo system comprising a bag portion and a pair of shoulder straps attached to the front side of the bag portion. Each shoulder strap carries a mini boom box on it wherein two mini boom boxes are connected to each other through an audio frequency wire. On top of the bag portion, there is an audio frequency receiver connected with two mini boom boxes through a power amplifier which has batteries stored in it. The structure of shoulder straps of the backpack belongs to double layer forming a channel with the compartment set on the top of the bag portion, wherein a power amplifier and an audio frequency receiver are set inside the compartment. An audio frequency wire is secured to and extending inside the channel. Each shoulder strap carries a pad on top of it, wherein a net sack is attached on the pad. A mini boom box with the speaker side facing upward is equipped inside the net sack. On the upper back surface, lower left and right side of the bag portion, there are music-player sacks attached to them.

The present invention has some advantages as following. First, it employs a whole new design idea creating a backpack with portable stereo system to increase the added value by lowering costs of the products, and therefore enhance the market competitiveness. Second, when people go traveling, they can listen to the good music, enjoy sound of nature and chat with friends at the same time. Third, the music-playing device would not increase the weight of the backpack. It is also convenient for the user, by connecting the audio frequency output of the CD player or MP3 player with the audio frequency receiver through an audio frequency wire.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the front perspective view of the present invention in 3-dimensional drawing.

FIG. 2 is the rear perspective view of the present invention in 3-dimensional drawing.

DETAIL DESCRIPTION OF THE PRESENT INVENTION

Referring to FIG. 1 and FIG. 2, the backpack that comes with portable stereo system includes a bag portion (1) and a pair of shoulder straps (2&3). On each side of the upper part of shoulder straps, there is a pad (20&30) which has a net sack (21&22) attached to it. Two mini boom boxes (4&5) are set inside the net sacks (21&22) with the speaker side facing upward.

The structure of shoulder straps (2&3) of the backpack belongs to double layer forming a channel with the compartment (8) set on the top of the bag portion (1) which is used to contain a power amplifier (6) and an audio frequency receiver (7). The audio frequency wire (9) which connects to the mini boom boxes (2&3) and power amplifier (6) is secured within and extending along the channel. The audio frequency receiver (7) which serves as a socket for plug or extended wire is connected with the power amplifier (6) that contains batteries inside.

A music-player sack (10) wherein the CD players and MP3 players can be equipped in is secured to the rear side of upper part of the bag portion (1), the other music-player sacks (11&12) are secured to the right and left side of lower part of the bag portion (1)

With this idea that the present invention employs, it can increase the added value of the product and therefore enhance the market competitiveness. 

1. A backpack with portable stereo system, comprising a bag portion, a pair of shoulder straps, two mini boom boxes, an audio frequency wire, an audio frequency receiver, a power amplifier, music-player sacks, a compartment, two strap pads, and two net sacks; wherein said two mini boom boxes connected to each other through said audio frequency wire are respectively attached on said shoulder straps; and wherein said audio frequency receiver is secured to top of said bag portion connecting to said two mini boom boxes.
 2. A backpack with portable stereo system, as defined in claim 1, wherein the power amplifier contained batteries inside is set between and connecting to the audio frequency wire and two mini boom boxes.
 3. A backpack with portable stereo system, as defined in claim 1, wherein the structure of a pair of shoulder straps belongs to double layers, wherein said two strap pads are respectively attached to upper part of said shoulder straps; said two net sacks wherein said two mini boom boxes are respectively equipped in are attached to said strap pads, wherein the speaker side of said two mini boom boxes are facing upward.
 4. A backpack with portable stereo system, as defined in claim 1, wherein said music-player sacks are respectively secured to upper part of the rear surface, lower part of the right and left side surface of the bag portion.
 5. A backpack with portable stereo system, as defined in claim 1, wherein said compartment secured to top of said bag portion is equipped with said power amplifier and said audio frequency receiver.
 6. A backpack with portable stereo system, as defined in claim 1, wherein the double-layer structure of said two shoulder straps and said compartment set on top of said bag portion form a channel wherein the audio frequency wire is secured to and extends along inside. 